6g Presentation, Miller Creek Culvert Replacement

Item No. 6g_supp
Meeting Date: August 11, 2020
Miller Creek Culvert Replacement, Fish
Passage and Habitat Restoration
Interlocal Agreement and
Funding Authorization

Project Background
City of Burien Project
Abandon failing culverts blocking fish passage
Construct new fish passable culverts
Stream habitat restoration
Current Status
Planning, design and permitting substantively complete
Construction scheduled for Summer 2021
Funding shortfall
Commission Motion to advance project (November 2019)
2

Why is this critical to the Port?


After
Culvert
Failure


3

Restoration Concept
Objectives:
Protect Port mitigation sites
Protect Des Moines Memorial Boulevard
Restore stream and riparian habitat
Integrate NERA stormwater, common-use trail,
and utility infrastructure
Design components:
Abandon existing culverts
Construct new fish passable culverts
Restore Stream


4

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